Gas-r-egulator



S. D. BALDWINL GAS REGULATOR.

No. 23,540. Patented Apr. 12, 1859.

M024 0; w. GAY/"M SILAS D. BALDWIN, OF MILWAUKEE, WISCONSIN.

GAS-REGULATOR.

Specification of Letters Patent No. 23,540, dated April 12, 1859;

T 0 all whom it may concern.

Be it known that 1, Sims D. BALDWIN, of the city of Milwaukee, in the State of Wisconsin, have invented certain new and useful Improvements in Gas-Regulators; and I do hereby declare the following to be a full and exact description of the same, reference being had to the accompanying drawings and to the letters and marks thereon.

Of the drawings forming part of this specification, Figure 1, is a top view of my gas regulator; Fig. 2, a perspective view of the same, and Fig. 3 a vertical section of the same.

My invention belongs to the class of regulators where it is designed to regulate the passage of gas from the supply to the delivery pipe by the pressure of the gas itself, so that whenever that pressure shall become extreme the transmitting space between the valve and its seat shall be so much dimin ished or contracted to keep the pressure of the gas in the delivery pipe at that degree which may be desired.

hiiy regulator is made up of a body (A), which is most conveniently and economically made of cast-iron, but which can be construeted of any other metal; of a cap or cover (G) 5 a valve and its stem (V) a pressure cup (T); and a valve-rod guide and deflector (G).

It will be perceived that an annular recess (Q) is formed in the upper part of the body and that another like recess is in the lower part of the body. The upper one of these recesses is to contain mercury, and will usually have in it about the quantity indicated by the shading in Fig. 3; while the lower recess is intended as a collecting chamber of the water of condensation. This recess is provided with a screw plug for letting out such water. The lower end of the body has a screw-thread upon it by which, through the intervention of the union piece (a), it is connected to the coupling (0, 0) of the supply pipe. At the upper end the body is connected to the delivery pipe by an ordinary elbow and screw-pipe-cou pling (0, 0). The manner of connecting the lower part of the body with the supply pipe by the intervention of the union piece (a), allows of easy and ready access to the valve and its seat when, for any reason, such access is desirable.

Upon the central and tubular portion of the body of the regulator is placed a detachable tube which is capped (G). Through the sides of this tube are holes or passages for the gas. The cap of this tube serves as a guide to the valve-rod or stem and as a deflector to the gas, as that part of the cap which extends beyond the sides of the tube deflects the current of gas against the inner surface of the body of the regulator and thus facilitates the deposition of any particles of extraneous matter which may be held or brought along by the current.

The stem of the valve, as is shown by Fig. 3 of the drawings, passes through the cap (G) and through the plate or cup (T). It is adjusted to the latter by adjusting nuts, one being above and the other below the plate, there being a screw thread upon the upper part of the valve stem for the nuts to be turned upon. This adjustabilit-y of the valvc-stem to the plate allows of the adjusting of the valve to its seat and the regulating of the area of the passage of the gas independent of its pressure.

The flanges of the cup (T), as is shown also by Fig. 3, are turned downward and inserted into the mercury, thus making what is commonly called the fluid joint. It will readily be seen that the pressure of the gas upon the under side of the pressure plate or cup (T) will have a tendency to elevate the valve and its stem and thus diminish the passage for the gas. This upward pressure only resisted by the weight of the valve and its stem, and, consequently, in fitting up the regulator it is only necessary to adapt the size of the pressure plate to the weight of the valve, having due regard to the pressure upon the gas by the gasometer, in order to have just that degree of pressure in the delivery pipe that may be required. If at any time it should be desirable to increase the resistance of the plate to the gas the cap (C) can be taken of]? and weights placed upon the pressure plate, or the same intentions may be carried out by turning upward to a greater or less extent the lower edge of the flange of the plate, by which a groove or recess would be formed for the mercury, 2. And in combination With a regulator 10 and thus the mercury be made use of to having such recess, I claim the union piecc Weight the pressure plate. (20) arranged and operated as herein set c Having thus fully set out the COIlStillCtiOIi forth. ,7

5 and o eration of my invention, What claim thereiii as new and desire to secure by Let- SILAS BALDVVIN' ters Patent is: Witnesses:

1. The annular recess or chamber (W) G. W. MYGAT for the purpose herein stated. L. A. SOHMIDTNES. 

